#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int my_strlen(char* a);
int main()
{
	char a[] = "asdasdf";
	printf("%d",my_strlen(a));
	return 0;
}
int my_strlen(char* a)
{
	if (*a == '\0')
		return 0;
	return 1 + my_strlen(a + 1);
}
